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Dietetics, Nutrition and Biological Sciences

Permanent URI for this collectionhttps://eresearch.qmu.ac.uk/handle/20.500.12289/23

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Author: search.filters.author.Stewart, JohnHas files: No

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    Inhibition of Listeria monocytogenes and Salmonella enteriditis by combinations of plant oils and derivatives of benzoic acid: the development of synergistic antimicrobial combinations.
    (International Society of Chemotherapy, 1998) Fyfe, Lorna; Armstrong, Fiona; Stewart, John
    This study describes inhibitory properties of combinations of oil of fennel, oil of anise or oil of basil with either benzoic acid or methyl-paraben against Listeria monocytogenes and Salmonella enteriditis. Micro-organisms were cultured at 37 degrees C in broth and viable counts measured over a 48-h period. S. enteriditis was particularly sensitive to inhibition by a combination of oil of anise, fennel or basil with methyl-paraben where there was < 10 CFU/ml after 1 h. L. monocytogenes was less sensitive to inhibition by each combination however there was a significant reduction in growth of 4-8 log by combinations of all oils and methyl-paraben at 8, 24 and 48 h. Synergistic inhibition by one or more combinations was evident against each micro-organism.
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    Inhibition of bacteria and yeast by oil of fennel and paraben: Development of synergistic antimicrobial combinations
    (Taylor & Francis, 1998) Hodgson, Ian; Stewart, John; Fyfe, Lorna
    This study describes inhibitory properties of combinations of oil of fennel and paraben (methyl, ethyl or propyl) against C. albicans, E. coli and S. aureus. Bacteria or yeast were cultured in broth at 25C and viable counts were measured over a period of 24 h. E. coli was particularly sensitive to inhibition by each combination where there was <10 of units/mL at all times of culture. C. albicans and S. aureus were less susceptible to inhibition by the combination of oil of fennel and methyl paraben but very susceptible to inhibition by oil of fennel in combination with propyl paraben where after 4 h there was <10 cf units/mL. Synergistic inhibition by one or more combinations was evident against each microbe.